(Supplementary
information)
TV Business Division
83
3.15 No Power DDCON/LDO
DC-DC Converter Overall Check
START
Check
C6093
Voltage.
Is the voltage 3.3V?
Check
C6042
Voltage.
Is the voltage 1.5V?
Check
C6072
Voltage.
Is the voltage 5V?
Check
C6141
Voltage.
Is the voltage 5V?
END (DDCON/LDO working normal)
no
yes
no
yes
no
yes
no
yes
Check
C6134,
C6050
is it
1.05V?
yes
no
Check
C6058
is
it 1.8V?
yes
no
Check 3.3V_MAIN
C6130
Voltage.
Is the voltage 3.3V?
DDC: +3.3V_DDC_OUT check
DDC: +1.5V_DDR check
DDC: +5.0V_DDC_OUT check
DDC: +5V_WIFI check
LDO: +1.05V_M3_xx check
DDC: +1.8V_TU check
SW: +3.3V_MAIN check
Check
C6146
Voltage.
Is the voltage 1V?
no
yes
DDC: +1.0V_M3 check
yes
no
Check
C6125
is
it 1.8V?
DDC: +1.8V_EMMC check
yes
no
SYS SET
2018/05/04 04:12:02 (GMT+09:00)
Summary of Contents for KD-43X7 F Series
Page 2: ...SERVICE MANUAL COMMON LCD TV GN4UN CHASSIS Segment CHL SYS SET 2018 05 04 04 12 02 GMT 09 00 ...
Page 10: ...1 8 FFC Handling Caution 10 SYS SET 2018 05 04 04 12 02 GMT 09 00 ...
Page 11: ...11 1 9 Solder less Tuner Replacement SYS SET 2018 05 04 04 12 02 GMT 09 00 ...
Page 31: ...31 3 6 6x Blinking backlight error SYS SET 2018 05 04 04 12 02 GMT 09 00 ...
Page 139: ...CHL Block Diagram 4K BB8 BB9 PWB for EU 139 SYS SET 2018 05 04 04 12 02 GMT 09 00 ...